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./adb shell cmd appops set com.whatsapp RUN_IN_BACKGROUND ignore
./adb shell cmd appops set com.yubico.yubioath RUN_IN_BACKGROUND ignore
./adb shell cmd appops set com.instagram.android RUN_IN_BACKGROUND ignore
./adb shell cmd appops set com.whatsapp RUN_IN_BACKGROUND 
./adb shell cmd appops set com.zhiliaoapp.musically RUN_IN_BACKGROUND ignore
./adb shell cmd appops set com.tinder RUN_IN_BACKGROUND ignore
./adb shell cmd appops get piuk.blockchain.android RUN_IN_BACKGROUND 
./adb shell cmd appops set piuk.blockchain.android RUN_IN_BACKGROUND ignore
./adb shell cmd appops set br.com.intermedium RUN_IN_BACKGROUND ignore
./adb shell cmd appops set bipa.app.bipa RUN_IN_BACKGROUND ignore

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#include <iostream>
#include <fstream> 
#include <vector>
int main()
{
    std::fstream f;
    std::string filePath = "file.txt";

    f.open(filePath, std::ios_base::binary  | std::ios_base::out | std::ios_base::in | std::ios_base::trunc );
    if (!f.is_open()) {

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      ALOGV(TAG, "#####################################################################");
        std::fstream f;
        ALOGV(TAG, "original filePath: %s", filePath.c_str());
        std::string filePath2 = "/storage/emulated/0/Android/data/com.stompai.flutter_app/files/something_3.txt";//filePath + "22w";
        ALOGV(TAG, "gonna open filePath2: %s", filePath2.c_str());
        f.open(filePath2, std::ios_base::binary | std::ios_base::in | std::ios_base::out);
        if (f.is_open()) {
            ALOGV(TAG, "is open");
        } else {
            ALOGV(TAG, "is closed");

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repo init -u https://android.googlesource.com/platform/manifest -b emu-master-dev --depth=1
repo sync -c -j8
cd external/qemu
python android/build/python/cmake.py [--target darwin_aarch64]

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https://fettec.net/en/shop/fettec-motor-1303.6 -  FETtec Motor 1303.6 

https://fettec.net/en/shop/fettec-mini-aio-15a -  FETtec Mini AIO 15A (controller + ESCS?)

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boot.img format:

https://forum.xda-developers.com/t/howto-unpack-edit-and-repack-boot-images.443994/

partitions explanation:

https://forum.xda-developers.com/t/info-android-device-partitions-and-filesystems.3586565/

bootloader unlock possibility for some brands: 

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x0vncserver -display :0 -localhost -passwordfile ~/.vnc/passwd

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#This script will create a folder kernel_compare and download the first kernel in `kernel`, commit it, then download the second kernel on `kernel` also, and commit 

mkdir kernel_compare
cd kernel_compare

mkdir kernel

#commit = 848ff3b146631bba895c487cd9104d094b987a47
git clone https://source.codeaurora.org/quic/la/kernel/msm-4.14
cd msm-4.14

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import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _MyAppState();
  }

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#This script will create a folder kernel_compare and download the first kernel in `kernel`, commit it, then download the second kernel on `kernel` also, and commit 

mkdir kernel_compare
cd kernel_compare

mkdir kernel

wget -O android-mainline.tar.gz https://android.googlesource.com/kernel/common/+archive/refs/heads/android-4.14-stable.tar.gz
tar xvzf android-mainline.tar.gz -C kernel
rm android-mainline.tar.gz